891348092 has 12 divisors (see below), whose sum is σ = 1574438040. Its totient is φ = 441508656.

The previous prime is 891348071. The next prime is 891348109. The reversal of 891348092 is 290843198.

It is a happy number.

It is a super-2 number, since 2×891348092² = 1589002842224080928, which contains 22 as substring.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1040867 + ... + 1041722.

It is an arithmetic number, because the mean of its divisors is an integer number (131203170).

Almost surely, 2^891348092 is an apocalyptic number.

It is an amenable number.

891348092 is a deficient number, since it is larger than the sum of its proper divisors (683089948).

891348092 is a wasteful number, since it uses less digits than its factorization.

891348092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2082700 (or 2082698 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 891348092 is about 29855.4533042123. The cubic root of 891348092 is about 962.3855932381.

The spelling of 891348092 in words is "eight hundred ninety-one million, three hundred forty-eight thousand, ninety-two".